| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $24,057 | $15,277 |
| 2016 | $25,204 | $15,585 |
| 2017 | $26,153 | $16,931 |
| 2018 | $26,153 | $16,109 |
| 2019 | $27,396 | $15,740 |
| 2020 | $28,207 | $16,551 |
| 2021* | $29,270 | $16,885 |
| 2022* | $30,374 | $17,226 |
| 2023* | $31,519 | $17,574 |
| 2024* | $32,707 | $17,929 |
| 2025* | $33,940 | $18,292 |
